зеркало из https://github.com/mozilla/gecko-dev.git
301 строка
8.4 KiB
C
301 строка
8.4 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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/*
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gnomeform.c --- stub functions dealing with front-end
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handling of form elements.
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*/
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#include "g-util.h"
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#include "g-html-view.h"
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#include "gnome-form.h"
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/*
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** FE_GetFormElementInfo - create the FE representation of a form
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** element.
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**
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** Note : This method can be called more than once for the same front
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** end form element.
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**
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** In those cases we don't reallocate the FEData*, and also don't
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** recreate the widget, but we do set the form and context pointers in
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** FEData, and we call the get_size method.
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**
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** Two cases I know of where layout calls this function more than once
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** are: 1) when laying out a table with form elements in it -- layout
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** moves our fe data over to a new LO_FormElementStruct. So, you
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** should always sync up pointers to the LO_FormElementStruct
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** contained in your fe data. 2) when we're on a page with frames in
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** it and the user goes back and forth. In this case, the context is
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** different, so you always need to sync that up as well.
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**
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** Also, layout could have told us to hide the widget without freeing
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** our fe_data* (this happens when hide is TRUE in
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** FE_GetFormElementValue.) In this case, we need to do anything
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** necessary to show the widget again.
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**
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** Also, this routine is responsible for setting the initial value of
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** the form element.
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**
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** yuck. :)
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*/
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void
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GNOMEFE_GetFormElementInfo (MWContext * context,
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LO_FormElementStruct * form_element)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_get_form_element_info(view,
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form_element);
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}
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/*
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** FE_GetFormElementValue - copy the value inside the fe
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** representation into the FormElementStruct.
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**
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** if hide is TRUE, hide the form element after doing the copy. In
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** the XFE, hide is taken to mean "delete" - so, if hide is TRUE, the
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** XFE deletes the form element widget. This is not strictly
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** necessary, as you are guaranteed to have FE_FreeFormElement if the
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** form element is *really* going away.
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**
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** But, given that this is called with hide == TRUE in the face of
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** going back and forth in frame documents, it's probably safer to
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** always delete the widget when hide == TRUE, as the widget's parent
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** is destroyed and recreated.
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*/
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void
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GNOMEFE_GetFormElementValue (MWContext * context,
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LO_FormElementStruct * form_element,
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XP_Bool hide)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_get_form_element_value(view,
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form_element,
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hide);
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}
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/*
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** FE_ResetFormElement - reset the value of the form element to the default
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** value stored in the LO_FormElementStruct.
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*/
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void
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GNOMEFE_ResetFormElement (MWContext * context,
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LO_FormElementStruct * form_element)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_reset_form_element(view,
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form_element);
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}
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/*
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** FE_SetFormElementToggle - set the toggle or radio button's state to
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** the toggle parameter.
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**
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** only called on CHECKBOX and RADIO form elements.
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*/
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void
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GNOMEFE_SetFormElementToggle (MWContext * context,
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LO_FormElementStruct * form_element,
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XP_Bool toggle)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_set_form_element_toggle(view,
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form_element,
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toggle);
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}
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void
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GNOMEFE_DisplayFormElement (MWContext * context,
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int iLocation,
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LO_FormElementStruct * form_element)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_display_form_element(view,
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form_element);
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}
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/*
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** FE_FreeFormElement - free up all memory associated with the front
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** end representation for this form element.
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*/
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void
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FE_FreeFormElement(MWContext *context,
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LO_FormElementData *form)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_free_form_element(view,
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form);
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}
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/*
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** FE_BlurInputElement - force input to be defocused from the given
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** element. It's ok if the element didn't have the input focus.
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*/
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void
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FE_BlurInputElement(MWContext *context,
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LO_Element *element)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_blur_input_element(view,
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(LO_FormElementStruct*)element);
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}
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/*
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** FE_FocusInputElement - force input to be focused on the given element.
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** It's ok if the element already has the input focus.
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*/
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void
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FE_FocusInputElement(MWContext *context,
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LO_Element *element)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_focus_input_element(view,
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(LO_FormElementStruct*)element);
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}
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/*
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** FE_SelectInputElement - select the contents of a form element.
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**
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** Only called on TEXT, TEXTAREA, PASSWORD, and FILE form elements (anything
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** with text in it.)
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**
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** This function should select the entire text contained in the FE widget.
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*/
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void
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FE_SelectInputElement(MWContext *context,
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LO_Element *element)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_select_input_element(view,
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(LO_FormElementStruct*)element);
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}
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/*
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** FE_ClickInputElement - Simulate a click on a form element.
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**
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** Note: This function also handles clicks on HREF anchored LO_IMAGE
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** and LO_TEXT LO_Elements. In these cases, this function should
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** simulate a user clicking on the LO_Element in question.
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*/
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void
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FE_ClickInputElement(MWContext *context,
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LO_Element *element)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_click_input_element(view,
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(LO_FormElementStruct*)element);
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}
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/*
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** FE_ChangeInputElement - handle change in form element value(s)
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**
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** This function should update the front end value for a given form
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** element, including (in the case of TEXT-like elements) just the
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** value, or (in the case of SELECT elements) both the list of
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** allowable values as well as the selected value.
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*/
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void
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FE_ChangeInputElement(MWContext *context,
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LO_Element *element)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_change_input_element(view,
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(LO_FormElementStruct*)element);
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}
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/*
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** FE_SubmitInputElement -
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**
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** Tell the FE that a form is being submitted without a UI gesture indicating
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** that fact, i.e., in a Mocha-automated fashion ("document.myform.submit()").
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** The FE is responsible for emulating whatever happens when the user hits the
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** submit button, or auto-submits by typing Enter in a single-field form.
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*/
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void
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FE_SubmitInputElement(MWContext *context,
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LO_Element *element)
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{
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MozHTMLView *view = find_html_view(context);
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XP_ASSERT(view);
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if (!view) return; /* XXX */
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moz_html_view_submit_input_element(view,
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(LO_FormElementStruct*)element);
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}
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int
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FE_ClickAnyElement(MWContext *context,
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LO_Element *element,
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int haveXY,
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int32 xx,
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int32 yy)
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{
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printf ("GNOMEFE_ClickAnyElement\n");
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}
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